American Revolution Bicentennial Commission

The United States Bicentennial was a series of celebrations and observances during the mid-1970s that paid tribute to the historical events leading up to the creation of the United States of America as an independent republic. It was a central event in the memory of the American Revolution. Wikipedia*

On the C-SPAN Networks:
American Revolution Bicentennial Commission has hosted 1 event in the C-SPAN Video Library; the first program was a 1975 Vignette.